Hydraulic machine hydraulic system requirements and analysis

Hydraulic machine is the use of hydraulic drive technology equipment pressure processing, it can be used to complete a variety of forging and pressure forming. Such as steel forging, molding, plastic products and rubber products repression metal structure. Hydraulic machine is one of the earliest applications of hydraulic mechanical transmission, hydraulic transmission has currently become the main form of transmission pressure processing machinery. Among the heavy machinery manufacturing, aerospace industry, plastics and non-ferrous metal processing industries, hydraulic machine has become an important device.

Hydraulic drive system is based on hydraulic pressure conversion based, high system pressure, flow, power. Therefore, we should pay special attention to improving the power efficiency and the prime mover to prevent shock and vibration relief, to ensure safe and reliable.

hydraulic press machine manufacturers according to the requirements of the pressing process can be completed fast down a deceleration suppress a rolling guarantee a relief when a return stop (any position) of the basic duty cycle, and pressure, speed and dwell time to be able to adjust. The top of the hydraulic cylinder is mainly used for the top of the workpiece is required to achieve top out, returned to stop the action. When stretched as thin, but also requires the top of the cylinder to rise, stop and return pressure and other auxiliary action. Sometimes you need to use the blank holding clamping cylinder to prevent surrounding wrinkling.

The maximum pressure of the hydraulic machine at the main movement in the main actuator (master cylinder) may output (Tonnage) as the main specifications of hydraulic machine, and has been serialized. Ejector cylinder tonnage often use 20% to 50% of the tonnage of the master cylinder. Top of the extruder may be a cylinder about l0% major tonnage. Double-acting hydraulic tensile machine clamping cylinder tonnage generally use about 60% elongation cylinder tonnage.

By the pressure process is necessary to determine the speed of the master cylinder, generally in the hydraulic system by the pump oil directly in its working stroke speed of not more than 50mm / s, the fast forward speed does not exceed 300mm / s, the speed rewind and fast forward speed equal.